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https://issues.apache.org/jira/browse/OPENJPA-184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Milosz Tylenda resolved OPENJPA-184.
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Resolution: Fixed
Fix Version/s: 2.2.0
Some documentation has been added in OPENJPA-1990.
> use DB2 Diagnostic interface to report extended error diagnostics on SQL
> Exception
> ----------------------------------------------------------------------------------
>
> Key: OPENJPA-184
> URL: https://issues.apache.org/jira/browse/OPENJPA-184
> Project: OpenJPA
> Issue Type: New Feature
> Environment: DB2 database
> Reporter: David Wisneski
> Assignee: David Wisneski
> Fix For: 2.2.0
>
>
> When using DB2 database and the SQLException occurs
> if the SQLException instance supports the DB2Diagnosable interface,
> extended error information from the SQLCA will be written to the SQL channel.
> The message format produced by DB2Diagnosable writer is
>
> SQLCA OUTPUT[Errp=SQLDMISR, Errd=[-2146893819, 5, 0, 0, -957, 0]]
> Errp is the name of the DB2 module that detected the error and Errd are 6
> integers of diagnostic information, SQLWARN are 6 characters
> of warning flags.. Often this additional information can be used by an
> administrator in doing problem determination.
> This message will be appended to the persistence exception error message
> already created by OpenJPA
> and it will be written to SQL logging channel (if active).
> DB2Dictionary class is modified to use java reflection on the SQLException
> instance to determine
> if it supports DB2Diagnosble methods "getErrp" and if so
> it invokes the methods to retrieve Errp and Errd fields, formats and logs the
> error message.
> Reflection is used so that the DB2Dictionary does not contain any compile
> time or runtime
> dependency on the DB2 jdbc driver. If the DB2Diagnosable methods do not
> exist on the SQLException
> instance, no extended error information is logged.
> org.apache.openjpa.jdbc.sql.SQLException class is modified so in the event of
> an exception
> if the Dictionary is DB2, to call the Dictionary routines above.
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